Journal article
Epoch of reionization power spectrum limits from Murchison Widefield Array data targeted at EoR1 field
M Rahimi, B Pindor, JLB Line, N Barry, CM Trott, RL Webster, CH Jordan, M Wilensky, S Yoshiura, A Beardsley, J Bowman, R Byrne, A Chokshi, BJ Hazelton, K Hasegawa, E Howard, B Greig, D Jacobs, R Joseph, M Kolopanis Show all
Monthly Notices of the Royal Astronomical Society | OXFORD UNIV PRESS | Published : 2021
Abstract
Current attempts to measure the 21 cm power spectrum of neutral hydrogen during the epoch of reionization (EoR) are limited by systematics that produce measured upper limits above both the thermal noise and the expected cosmological signal. These systematics arise from a combination of observational, instrumental, and analysis effects. In order to further understand and mitigate these effects, it is instructive to explore different aspects of existing data sets. One such aspect is the choice of observing field. To date, MWA EoR observations have largely focused on the EoR0 field. In this work, we present a new detailed analysis of the EoR1 field. The EoR1 field is one of the coldest regions ..
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Grants
Awarded by Japan Society for the Promotion of Science
Funding Acknowledgements
The authors wish to thank the anonymous referee for providing constructive suggestions that greatly improved the paper. This researchwas supported by Australian Government Research Training Program Scholarship and the Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), through project number CE170100013.Computational resources used were awarded under Astronomy Australia Ltd's ASTAC merit allocation scheme on the OzSTAR national facility at Swinburne University of Technology. The OzSTAR programme receives funding in part from the Astronomy National Collaborative Research Infrastructure Strategy (NCRIS) allocation provided by the Australian Government.